致病岛 (ｐａｔｈｏｇｅｎｅｃｉｔｙｉｓｌａｎｄ)是细菌染色体上编码毒力相关基因的特殊区域 ,是在细菌学领域对致病性细菌致病机理的研究中出现的一个新概念 ,是某些致病性细菌在进化过程中适应环境的变化而获得的毒力基因。人们发现在许多病原性细菌中都存在着致病岛 ,致病 The pathogenecisisland is a special region in the bacterial chromosome that encodes virulence-related genes and is a new concept emerging in the field of bacteriology for the pathogenesis of pathogenic bacteria as some pathogenic bacteria are evolving In the process of adaptation to environmental changes obtained virulence genes. It is found that in many pathogenic bacteria are pathogenic island, pathogenic